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2.3
SMBus Module and ACPI Block (Device 20, Function 0)
Some registers in the SMBus/ACPI PCI configuration space (PCI_reg, see
and settings for a number of blocks within the SB600.
functions and the associated PCI_reg registers.
SATA
SATA Enables
SATA power saving
SATA Interrupt Map register
SATA Smart Power Control
PCI_Reg:
AC/AFh
5Ch
98h
Keyboard Control
Keyboard Reset
Keyboard Interrupt IRQ 12 filter
External keyboard reset enable
Mouse control
Serirq controller registers
PCI_Reg:
64h
62h
69h
I/O PORTS
I/O Port Address enables
I/O C50 -C52 Enable
PM I/O register CD6 / CD7 Enable
Base Addr I/O or Mem map control
K8 I/O Wake Address
PCI_Reg:
--
78h
F4h
Figure 4 SMBus/ACPI PCI Configuration Space Function Block Association
©2008 Advanced Micro Devices, Inc.
AMD SB600 Register Reference Manual
Figure 4
Bus 0 Dev 20 Function 0
USB
OHCI / EHCI Controller Enables
USB Reset / PowerDown
USB Legacy control
USB Smart Power Control
USB PM & SMI Control
PCI_Reg:
64/68/6Bh
5Ch
98h
PIC / IOAPIC
PIC /IOAPIC Enable
IOAPIC Base Address
IOAPIC clock control
PCI_Reg:
74h
64h
Memory Window
ISA Address Decode registers
ROM Address enables
PCI_Reg:
41h
49:48 h
--
SMBus Module and ACPI Block (Device 20, Function 0)
section
below shows these blocks, with their affected
PCI
PCI Stop Clock enable
PCI Bridge Soft Reset Enable
PCI Bus drive strength registers
PCI_Reg:
C0h
6Ch
64h
GPIO
GPIO Enables
GPIO Status
Gpio input / output registers
PCI_Reg:
81:80 h
58:50 h
A0:AC h
PCI_Reg:
--
BC h
--
LPC
LPC Controller Enable
LPC Drive strength control
PCI_Reg:
C0h
64h
--
Proprietary
2.3.1) contain controls
RTC
RTC Ram Protection
External RTC Enable
RTC I/O Addr Enable
PCI_Reg:
64h
6Ah
78h
2
SMBus / I
C
I2C port enables
I2C port Address register
I2C port R/W shadow port
I2C bus revision ID
Smbus base Address
SATA SMBus control
PCI_Reg:
AD:AC h
AD:AC
D5:D2 h
90 h
10h
08h
--
Misc
K8 Intr Enable
MSI Mapping register
Ext Gate A20
AB register base address
Multimedia timer enable
8250 Timer Eenable
PCI-SPCI clock ratio
PCI_Reg:
B0/E0 h
AD:AC
62h
64h
74h
F0h
--
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